JP5335406B2 - Housing cover attachment / detachment structure - Google Patents

Abstract

The invention provides a disassembly and assembly construction of chassis cover, which can make the disassembly and assembly of chassis cover in the chassis cover disassembly and assembly mechanism of electronic apparatus and the like become easier, and does not make the clamping part of the chassis cover be divorced from the inserting part of the chassis to cause the breaking-off of the chassis cover. The disassembly and assembly construction is a disassembly and assembly construction of a chassis cover including a clamping part becoming a fulcrum, in a chassis cover disassembly and assembly mechanism for clamping the mounting bracket provided inside the chassis cover and a fixed bracket fixed in the apparatus chassis to install the chassis cover, the mounting bracket includes a slot part and a bending section that are jogged on the fixing screw arranged on the fixed bracket, the fixed bracket includes a slope part for guiding the bending section to the mounting direction, and a stop part for clamping the bending section in the disassembly direction.

Description

  The present invention relates to a structure for safely attaching and detaching a housing cover of an electronic device or the like.

  As shown in FIGS. 11 (top view) and FIG. 12 (side view), the conventional housing cover attaching / detaching structure provided on the back surface of a relatively large electronic device or the like includes a locking portion 101a at the bottom. The housing cover 101 includes a housing bracket 102 provided with a hole 102a, a housing 103 provided with an opening 103a at a lower portion, a fixing bracket 104, and a mounting screw 105. As shown in FIG. 13, the engaging portion 101a is passed through the opening 103a and engaged with the housing 103, the housing cover 101 is pushed up in the direction C in the figure, and the mounting bracket 102 at the top of the housing cover 101 is placed. To the upper surface of the fixing bracket 104 provided on the upper left and right of the housing 103 (see, for example, Patent Document 1).

  The mounting screw 105 is temporarily fixed to the fixing bracket 104 in advance, and the mounting bracket 102 has a hole 102a that is slightly larger than the washer of the mounting screw 105 as shown in FIG. 11, as shown in FIG. Then, the housing cover 101 is lifted in the direction of the arrow U, and the mounting screw 5 is fitted into the hole 102a from above as in the direction of the arrow D.

  When the housing cover 101 is further pushed in the direction of arrow C, the hole 102a of the mounting bracket 102 is closed as shown in FIG. 11 and the groove 102d is provided, so that the mounting screw 105 is fitted into the groove 102d. That is, the housing cover 101 is fixed and does not fall (see, for example, Patent Document 2).

Also, the housing cover 101 was removed by pulling the housing cover 101 in the direction opposite to the arrow C direction, aligning the mounting screw 105 with the hole 102a, and pulling it upward in the direction opposite to the arrow D direction. .
JP-A-6-177552 Japanese Patent Laid-Open No. 10-14020

However, in the above conventional housing cover attachment / detachment structure, the hole 102a of the mounting bracket 102 is inside the housing cover 101, and the mounting screw 105 is temporarily fixed to the fixing bracket 104 of the housing 103. the mounting screw 105 must be fitted from above into the hole 102a in the hard to condition, the housing cover 101 to lift protruding portion of the mounting screw 105, out the insertion of the locking portion 101a and the housing 103 of the housing cover 101 In some cases, the housing cover 101 falls off. Further, even in the case of removal, there is a problem that it is difficult to see the attachment screw 105 in the key hole 102a and it is difficult to remove it.

Further, in order to prevent falling off of the housing cover 101 when mounting the aforementioned, but enough to expect minute to lift the length of the locking portion 101a of the housing cover 1 during the attachment operation of the housing cover 1 When the length, amount of vertical movement required insertion operation of the locking portion 101a becomes correspondingly longer, during its movement, there is a problem that will have to continue to hold the heavier housing cover 101.

The present invention employs the following means in order to solve the aforementioned problems. That is, the present invention is a detachable structure of a housing cover provided with a locking portion serving as a fulcrum, and engages an attachment member provided inside the housing cover and a fixing member fixed to the device housing. In the case cover attaching / detaching mechanism for attaching the case cover, the attachment member includes a bent portion formed by bending the attachment member , and the fixing member contacts the bent portion of the attachment member in the attachment direction. A slope portion for guiding is provided, and the locking portion is provided with a length that does not fall off even when the housing cover is lifted at least by the thickness of the bent portion .

According to the housing cover attaching / detaching mechanism of the present invention, it is a housing cover attaching / detaching structure provided with a locking portion serving as a fulcrum, and is fixed to an attachment member and an apparatus housing provided inside the housing cover. In the case cover attaching / detaching mechanism for engaging the fixing member and attaching the case cover, the mounting member includes a bent portion formed by bending the mounting member, and the fixing member includes a bent portion of the mounting member. A slope portion that abuts and guides in the mounting direction is provided, and the locking portion is provided with a length that does not fall off even when the housing cover is lifted at least by the thickness of the bent portion by the slope portion. In addition, the attachment of the locking portion of the housing cover and the apparatus housing is removed during mounting, and the housing cover does not fall off.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element common to drawing. The case cover will be described below as a back cover, but the present invention can be similarly applied to a cover attached to the front face or side face.

(Constitution)
1 and 2 are a top view and a side view showing a mounting / demounting structure of a housing cover according to the embodiment. As shown in the figure, the case cover attaching / detaching structure of the embodiment is a case cover 1 of a device (not shown), for example, a case cover 1 on the back side and a locking portion 1a provided at the bottom, and the back side of the device. Mounting brackets 2 attached to the left and right upper portions of the housing cover 1 as viewed from the side, a housing 3 provided with an opening 3a at the lower portion of the apparatus, and the mounting bracket when the housing cover 1 is attached. 2, a fixing bracket 4 fixed to the device at two positions on the left and right sides and an attachment screw 5 attached to the fixing bracket 4.

  Further, the mounting bracket 2 of the housing cover 1 is provided with a bent portion 2b which is bent in thickness, and the fixed bracket 4 on the apparatus side is provided with a slope portion 4b.

  Here, as shown in the lower side of FIG. 2, the length La of the portion into which the locking portion 1 a of the housing cover 1 is inserted into the housing 3 is determined when the housing cover 1 is attached. However, even if the mounting bracket 2 is lifted by the thickness of the mounting bracket 2, the casing cover 1 does not fall off and has a minimum length.

(Operation)
With the above configuration, the case cover attaching / detaching structure of the embodiment operates as follows. This operation is described with reference to the operation of the case cover attaching / detaching structure of the embodiment of FIGS. 3 and 4 (top view and side view, respectively), and the case cover attaching / detaching structure of the embodiment of FIGS. The operation will be described in detail below with reference to the operation explanatory views (respectively a top view and a side view) of the detachment of the

First, when the housing cover 1 is attached, as shown in FIGS. 3 and 4, the locking portion 1 a at the bottom of the housing cover 1 is inserted into the housing 3 through the opening 3 a of the housing 3, and the housing cover 1 is inserted. When the mounting bracket 2 at the top of 1 is pushed in the direction of arrow A, it comes into contact with the slope portions 4b of the left and right fixing brackets 4 provided in the housing 3 of the apparatus, and the thickness of the mounting bracket 2 is pushed further. Lifts in the direction of the arrow U by Lz, proceeds along the slope portion 4b, and gets over the stopper portion 4c of the fixing bracket 4.

Then, when the stopper 4c of the fixed bracket 4 is overcome, the bent portion 2 of the mounting bracket 2 is lowered in the direction opposite to the arrow U direction. Stops at the position shown in FIG. 1, FIG. And it fixes with two attachment screws 5 on either side.

  When removing the housing cover 1, as shown in FIGS. 5 and 6, the mounting screws 5 located inside the housing 3 are loosened by the plate thickness Lz of the mounting bracket 2 + several millimeters. Then, by pulling the upper portion of the housing cover 1 forward (in the direction of arrow B), the bent portion 2 b of the mounting bracket 2 abuts against the stopper portion 4 c of the fixed bracket 4. This state is the state shown in FIGS.

  At this position, when the housing cover 1 is lifted in the direction of arrow U by the plate thickness of the mounting bracket 2 + several millimeters, the groove 2x hits the mounting screw 5. In this state, the bent portion 2b of the mounting bracket 2 is disengaged from the stopper portion 4c of the fixed bracket 4, and the housing cover 1 is removed by pulling out from this position toward the front, that is, in the B direction.

  In the above description of the embodiment, the notch 2 y is provided on one end side of the mounting bracket 2, the bent part 2 b is provided on the projecting side tip, the groove 2 x is provided on the notch side, and the housing 3 is fixed. Although it has been described that the bracket 4 is provided with the stopper portion 4c, as shown in FIG. 7 (top view) and FIG. 8 (side view), a groove portion is formed at a substantially central portion of the mounting bracket 2 attached to the housing cover 1. 2x may be provided, and bent portions 2b may be provided at both ends, while holes 4e and 4f may be provided in the fixed bracket 4 of the housing 3 of the apparatus at positions facing the bent portions 2b.

With such a configuration, insert the housing cover 1 lower locking portion 1a on the housing 3 to move the housing cover 1 in the direction of the arrow X, the housing cover 1 by the same procedures as those in Example It can be attached and detached without falling off.

  Alternatively, as shown in FIG. 9, when the tapered portion 2z is provided in the groove portion 2x, the housing cover 1 can be smoothly fitted into the mounting screw 5 when moved in the X direction.

  In the above description of the embodiment, the left and right mounting brackets 2 and the fixing brackets as viewed from the rear side of the apparatus are explained to have the same shape. However, as shown in FIG. In this case, it is easy to align the left and right positions with the mounting screw 5 at the time of mounting, and the possibility that the housing cover 1 falls off is further reduced.

  Then, as shown as the hatched portion in FIG. 10, if the taper 2z is provided in the notch 2y or the groove 2x, the groove 2x can be smoothly fitted into the mounting screw 5.

(Effect of Example)
According to detachable structure of the casing cover of the embodiment as above, a detachable structure of the housing cover 1 provided with a locking portion 1a serving as a fulcrum, attached provided on the inside of the housing cover 1 In the housing cover attaching / detaching mechanism for attaching the housing cover 1 by engaging the bracket 2 and the fixing bracket 4 fixed to the housing 3 of the apparatus, the mounting bracket 2 is attached to the mounting screw 5 provided in the fixing bracket 4. Since the fixing bracket 4 includes a slope portion 4b for guiding the bent portion 2b in the mounting direction and a stopper portion 4c for hooking the bent portion 2b in the removing direction. , even difficult to see the groove 2x and mounting screws 5, the mounting is facilitated, the housing cover 1 out is inserted in the engaging portion 1a and the housing 3 of the housing cover 1 during installation can de It is not to be.

  Further, even when the housing cover 1 is lifted by the plate thickness Lz of the mounting bracket 2 when the housing cover 1 is attached to the length La of the portion where the locking portion 1a of the housing cover 1 is inserted into the housing 3. Since the housing cover 1 is set to such an extent that it does not fall off, the distance to be lifted during installation is shortened, and the time for lifting the heavy housing cover 1 is also shortened.

  Further, even when the housing cover 1 is removed, even if the groove 2x and the mounting screw 5 are difficult to see, the housing cover 1 can be easily removed, and the length to be lifted during the removal is shortened to hold the heavy housing cover 1. Time is also shortened.

  As described above, the present invention can be widely used for relatively large devices such as ticket issuing machines and automatic teller machines that handle tickets, air tickets and the like that require removal of the housing cover.

It is a block diagram (top view) of the housing | casing cover of an Example. It is a block diagram (side view) of the housing | casing cover of an Example. It is attachment operation explanatory drawing (top view) of the housing | casing cover of an Example. It is attachment operation explanatory drawing (side view) of the housing | casing cover of an Example. It is a removal operation explanatory drawing (top view) of the case cover of an example. It is removal operation explanatory drawing (side view) of the housing | casing cover of an Example. It is a block diagram (top view) of the housing | casing cover of the modification of an Example. It is a block diagram (side view) of the housing | casing cover of the modification of an Example. It is a block diagram (top view) of the housing | casing cover of the modification of an Example. It is a block diagram (top view) of the housing | casing cover of the modification of an Example. It is a block diagram (top view) of the conventional housing | casing cover. It is a block diagram (side view) of the conventional housing | casing cover. It is explanatory drawing (side view) of attachment operation | movement of the conventional housing | casing cover. It is explanatory drawing (side view) of attachment operation | movement of the conventional housing | casing cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case cover 1a Locking part 2 Mounting bracket 2b Bending part 2x Groove part 2y Notch 2z Taper part 3 Housing | casing 3a Opening part 4 Fixing bracket 4b Slope part 4c Stopper part 4e, 4f Hole part 5 Attachment screw

Claims (6)

A detachable structure of a housing cover provided with a locking portion serving as a fulcrum, wherein the housing cover is engaged by engaging a mounting member provided inside the housing cover and a fixing member fixed to the device housing. In the case cover attaching / detaching mechanism to be attached,
The mounting member includes a bent portion formed by bending the mounting member,
The fixing member includes a slope portion that contacts the bent portion of the mounting member and guides the mounting member in the mounting direction.
The housing cover attaching / detaching structure is characterized in that the locking portion is provided with a length that prevents the housing cover from falling off even if the housing cover is lifted by the thickness of the bent portion by the slope portion. The mounting member is removable structure of the housing cover according to claim 1, wherein the obtaining Bei a groove to fit the mounting screws provided in the fixing member.   The housing cover attachment / detachment structure according to claim 2, wherein the fixing member includes a stopper portion in which a bent portion of the attachment member is hooked in a removal direction.   A plurality of the mounting members and the fixing members are provided, and the bent portions of the mounting members and the slope portions of the fixing members are substantially symmetrical with respect to the mounting members or the fixing members. 4. The housing cover attaching / detaching structure according to claim 2 or claim 3, wherein the housing cover attaching / detaching structure is provided.   The casing cover attaching / detaching device according to claim 2, wherein the bent portion has a curved shape at a tip end portion that comes into contact with the slope portion.   6. The housing cover attaching / detaching structure according to claim 2, wherein a tapered portion is provided in the vicinity of the groove.

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